CN117414162A - Biopsy sampler - Google Patents
Biopsy sampler Download PDFInfo
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- CN117414162A CN117414162A CN202311724981.XA CN202311724981A CN117414162A CN 117414162 A CN117414162 A CN 117414162A CN 202311724981 A CN202311724981 A CN 202311724981A CN 117414162 A CN117414162 A CN 117414162A
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- needle tube
- inner needle
- piston
- pipeline
- end cover
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- 238000001574 biopsy Methods 0.000 title claims abstract description 39
- 230000002439 hemostatic effect Effects 0.000 claims abstract description 32
- 230000000740 bleeding effect Effects 0.000 claims abstract description 16
- 238000011010 flushing procedure Methods 0.000 claims description 34
- 230000033001 locomotion Effects 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000006835 compression Effects 0.000 abstract description 8
- 238000007906 compression Methods 0.000 abstract description 8
- 230000023597 hemostasis Effects 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 5
- 210000001519 tissue Anatomy 0.000 description 31
- 238000005070 sampling Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 11
- 206010052428 Wound Diseases 0.000 description 6
- 208000027418 Wounds and injury Diseases 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000001575 pathological effect Effects 0.000 description 5
- 210000000481 breast Anatomy 0.000 description 3
- 238000003745 diagnosis Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- POIUWJQBRNEFGX-XAMSXPGMSA-N cathelicidin Chemical compound C([C@@H](C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CO)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H]([C@@H](C)CC)C(=O)NCC(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CCCCN)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@@H](CC=1C=CC=CC=1)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N1[C@@H](CCC1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H]([C@@H](C)O)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CO)C(O)=O)NC(=O)[C@H](CC=1C=CC=CC=1)NC(=O)[C@H](CC(O)=O)NC(=O)CNC(=O)[C@H](CC(C)C)NC(=O)[C@@H](N)CC(C)C)C1=CC=CC=C1 POIUWJQBRNEFGX-XAMSXPGMSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000002980 postoperative effect Effects 0.000 description 2
- 206010061218 Inflammation Diseases 0.000 description 1
- 201000004458 Myoma Diseases 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000012333 histopathological diagnosis Methods 0.000 description 1
- 230000004054 inflammatory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 210000005075 mammary gland Anatomy 0.000 description 1
- 238000002324 minimally invasive surgery Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000007170 pathology Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/04—Endoscopic instruments, e.g. catheter-type instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Instruments for taking body samples for diagnostic purposes; Other methods or instruments for diagnosis, e.g. for vaccination diagnosis, sex determination or ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/04—Endoscopic instruments, e.g. catheter-type instruments
- A61B2010/045—Needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/12—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels or umbilical cord for haemostasis, for prevention of bleeding
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Animal Behavior & Ethology (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Reproductive Health (AREA)
- Vascular Medicine (AREA)
- Radiology & Medical Imaging (AREA)
- Surgical Instruments (AREA)
Abstract
The present disclosure relates to biopsy sampler, an inner needle tube, an outer needle tube, a piston cylinder, an inner needle tube motor and a hemostatic device; the inner needle tube is a hollow tube arranged in the accommodating cavity in the outer needle tube, a side window is arranged on the side surface of the bottom of the outer needle tube, and the side window is communicated with the outside of the outer needle tube and the accommodating cavity; the hemostatic device is a high-temperature generator or a low-temperature generator, and the hemostatic end of the hemostatic device is arranged inside the inner needle tube so as to stop bleeding of the sampled bleeding point. The invention can stop bleeding on the wound after biopsy, and avoids the problem of long recovery period caused by compression hemostasis in the prior art.
Description
Technical Field
The present disclosure relates to the field of medical devices, and more particularly, to a biopsy sampler capable of stopping bleeding on a wound.
Background
Minimally invasive surgery is now becoming the mainstream in medicine, and biopsy sampling is a technique for taking out pathological tissue from a patient by incision, forceps, puncture, or the like, and performing pathological examination, as needed for diagnosis and treatment.
At present, biopsy is the most important part of diagnosis pathology, and clear histopathological diagnosis can be made for most of the delivery cases, and is taken as the final diagnosis in clinic. There are many medical devices that obtain tissue from human tissue, and some unnecessary tissue of the human body needs to be excised, such as nodules, myomas, and the like. In order to obtain tissue samples, various methods are known in the art.
In the prior art, some instruments for acquiring tissues have complicated structures, particularly in a driving part, and the existing tissue cutting mode has no way to perform hemostasis treatment after tissue sampling. Taking a mammary gland rotary-cut biopsy device as an example, performing tissue cutting by using an inner needle and an outer needle, firstly sucking the tissue into the outer needle by using negative pressure, and then performing automatic cutting and sampling, wherein the existing device generally does not have a postoperative hemostasis treatment function, but adopts compression hemostasis, so that tissue congestion of a patient can occur after the operation, the tissue congestion can be relieved generally only in 2-3 days, and even for the longer people, about 7 days are needed. Thus, the prior devices lack timely hemostatic treatment of the wound and use of the devices is not conducive to postoperative recovery of the patient.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a biopsy sampler, which comprises an inner needle tube, an outer needle tube, a piston cylinder, an inner needle tube motor and a hemostatic device;
the inner needle tube is a hollow tube arranged in the accommodating cavity in the outer needle tube, a side window is arranged on the side surface of the bottom of the outer needle tube, and the side window is communicated with the outside of the outer needle tube and the accommodating cavity;
the hemostatic device is a high-temperature generator or a low-temperature generator, and the hemostatic end of the hemostatic device is arranged inside the inner needle tube so as to stop bleeding of the sampled bleeding point.
The inner needle tube is a hollow tube, and is used for biopsy sampling, and the sample is extracted through the hollow part. The middle of the outer needle tube is provided with a containing cavity, the inner needle tube is arranged in the containing cavity, the side surface of the bottom of the containing cavity is provided with a side window, and the side window is communicated with the outer part of the outer needle tube and the containing cavity. During sampling, the inner needle tube is brought to the sampling part through the outer needle tube, then the elasticity of human tissue is utilized to enable the sampling target part to be extruded into the accommodating cavity corresponding to the side window, and then the inner needle tube is used for sampling.
The hemostatic device is arranged on the outer side of the outer needle tube and is used for stopping bleeding of a sampled bleeding point, and the hemostatic device can stop bleeding of a wound after biopsy, so that the problem of long recovery period caused by compression hemostasis in the prior art is avoided.
Preferably, the hemostatic device is a steam spray head device, a steam component of the steam spray head device is installed at one end of the sampler shell far away from the inner needle tube, and a steam pipeline communicated with the inner needle tube is arranged inside the steam component.
Preferably, the steam nozzle is arranged on the inner needle tube.
Preferably, the outer needle tube is fixedly connected with the piston cylinder, the inner needle tube motor is connected with the piston, and the inner needle tube motor is in transmission connection with the inner needle tube, so that the inner needle tube can rotate in the accommodating cavity and can do linear reciprocating motion in the accommodating cavity along the motion direction of the piston.
The outer needle tube is fixedly connected with the piston cylinder, the inner needle tube motor is fixedly connected with the piston, and the inner needle tube motor is in transmission connection with the inner needle tube, so that the inner needle tube can rotate in the accommodating cavity and can do linear motion in the accommodating cavity along the motion direction of the piston. The inner needle tube can be rotated while the inner needle tube is advanced by utilizing the linear motion of the piston and the rotary motion of the motor of the inner needle tube, so that the cutting and sampling of human tissues are convenient.
Preferably, the piston cylinder is further provided with a collecting bin, the collecting bin is communicated with the inner needle tube, and a negative pressure pipeline is arranged to be connected with the collecting bin.
The pressure in the collecting bin is smaller than the external atmospheric pressure through the negative pressure pipeline, so that the human tissues collected in the inner needle tube can be conveniently transferred into the collecting bin. Meanwhile, the negative pressure pipeline can also absorb human tissues to enter the side window after the side window is opened, so that the sampling effect is improved.
Preferably, a connecting pipe is further provided for connecting the inner needle tube and the collecting bin, and the connecting pipe is rotatably connected with the inner needle tube.
The connecting pipe is arranged, so that the rotary motion of the inner needle tube can be counteracted, the relative displacement of the connecting pipe and the collecting bin is only linearly moved, and the tightness of the connecting position of the collecting bin and the connecting pipe is good.
Preferably, a flushing gap is arranged between the inner needle tube and the inner wall of the accommodating cavity, and a flushing pipeline connected to the flushing gap is arranged on the piston cylinder.
The flushing pipeline is connected with the flushing liquid, so that the flushing gap can be filled with the flushing liquid to flush tissues, then the flushing liquid enters the inner needle tube, finally the flushing liquid enters the collecting bin along the inner needle tube, and finally the flushing liquid is discharged through the negative pressure pipeline.
Preferably, a pressure spring is further provided, one end of the pressure spring abuts against the piston cylinder, the other end of the pressure spring abuts against the piston, and when the piston cylinder is filled with pressure fluid, the pressure spring is compressed.
The compression spring is arranged to provide energy for resetting the piston, so that the piston cylinder and the piston are matched, only one direction of movement is needed to be considered, and compared with a piston moving bidirectionally, the piston has a simplified structure and is beneficial to miniaturization of the biopsy sampler.
Preferably, the inner needle tube motor is a pneumatic motor, the piston cylinder is an air cylinder, and the piston cylinder is provided with a corresponding motor pipeline and an air cylinder pipeline.
The gas is used as a power source of the motor and the piston of the inner needle tube, and particularly, inert gas can be used as a power source, so that the electric and hydraulic oil are safer than those of the electric and hydraulic oil.
Preferably, the piston cylinder comprises a cylinder body, a first end cover and a second end cover, and the first end cover and the second end cover are fixedly connected to the cylinder body;
the first end cover is provided with an inner needle tube hole for passing through the inner needle tube, one end of the pressure spring is abutted against the first end cover, the outer needle tube is fixed on the first end cover, and the flushing pipeline is arranged on the first end cover and connected to the inner needle tube hole;
the second end cover is provided with a connecting pipe hole for passing through a connecting pipe, and the cylinder pipeline and the motor pipeline are arranged on the second end cover.
The invention can stop bleeding on the wound after biopsy, and avoids the problem of long recovery period caused by compression hemostasis in the prior art. Meanwhile, the power structure of the invention has simple overall structure and small size, and is convenient for users to operate better.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be apparent to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIGS. 1a-1c are schematic diagrams of a spring-relaxed state in a biopsy sampler of the present invention;
FIGS. 2a-2c are schematic diagrams showing compression of a compression spring in a biopsy sampler according to the present invention;
FIG. 3 is a schematic view of a blood stopping device of the biopsy sampler of the present invention;
FIG. 4 is a schematic view of a biopsy sampler of the present invention;
FIG. 5 is a schematic view of the biopsy sampler and vapor jet device of the present invention;
FIG. 6 is a schematic illustration of a biopsy sampler and vapor jet device of the present invention;
fig. 7 is a schematic view of a steam nozzle in the steam nozzle apparatus of the present invention.
In the figure: 1-inner needle tube, 2-outer needle tube, 3-piston, 4-piston cylinder, 5-inner needle tube motor, hemostatic end of 6-hemostatic device, 7-steam component, 8-side window, 9-collecting bin, 10-negative pressure pipeline, 11-connecting pipe, 12-steam pipeline, 13-flushing pipeline, 14-pressure spring, 15-motor pipeline, 16-cylinder pipeline, 17-cylinder body, 18-first end cover, 19-second end cover, 20-inner needle tube hole, 21-connecting tube hole, 22-steam spray head.
Detailed Description
In order that the above objects, features and advantages of the present disclosure may be more clearly understood, embodiments of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.
Referring to fig. 1 a-7, a biopsy sampler provided in an embodiment of the present invention comprises an inner needle cannula 1, an outer needle cannula 2, a piston 3, a piston cylinder 4, an inner needle cannula motor 5 and a hemostatic device.
The inner needle tube 1 is a hollow tube arranged in a containing cavity in the outer needle tube 2, a side window 8 is arranged on the side surface of the bottom of the outer needle tube 2, and the side window 8 is communicated with the outside of the outer needle tube 2 and the containing cavity. The inner needle tube 1 is a hollow tube, and the inner needle tube 1 is used for biopsy sampling, and samples are extracted through the hollow part. The middle of the outer needle tube 2 is provided with a containing cavity, the inner needle tube 1 is arranged in the containing cavity, the side face of the bottom of the containing cavity of the outer needle tube 2 is provided with a side window 8, and the side window 8 is communicated with the outer part of the outer needle tube 2 and the containing cavity. During sampling, the inner needle tube 1 is brought to a sampling position through the outer needle tube 2, then the elasticity of human tissues is utilized to enable the sampling target position to be extruded into the accommodating cavity corresponding to the side window 8, and then the inner needle tube 1 is used for sampling.
The hemostatic device may preferably be provided as a high temperature generating device or a low temperature generating device, and when provided as a high temperature generating device, a specific alternative is such as a vapor jet device or an ultrasonic wave generating device or a microwave generating device or a radio frequency radiation generating device; when provided as a low temperature generation device, specific alternatives are gasification generation devices such as liquid nitrogen, liquid carbon dioxide, and the like. The specific setting may be selected according to the use requirement, etc., and is not particularly limited herein, although it is also possible to install two or more kinds of identical or different hemostatic devices on the sampler at the same time, as the conditions allow. The hemostatic end 6 of the hemostatic device is disposed inside the inner needle cannula 1 to stop bleeding from the sampled bleeding site. By the hemostatic device, the wound can be hemostatic after biopsy, and the problem of long recovery period caused by compression hemostasis in the prior art is avoided.
In a preferred embodiment of the present application, the hemostatic device is a vapor jet device, and the vapor component 7 of the vapor jet device is mounted at the end of the sampler housing away from the inner needle tube 1, and a vapor pipeline 12 communicating with the inner needle tube 1 is provided inside the vapor component 7, as shown in fig. 5.
In addition, the vapor jet head apparatus further includes a vapor jet head 22 provided on the inner needle tube 1.
As shown in fig. 5 to 7, the hemostatic end 6 of the hemostatic device is preferably a vapor nozzle 22, and in use, the hemostatic device may pass through the inner needle cannula 1 to reach the side window 8, the vapor nozzle 22 is disposed at the same height as the side window 8 of the outer needle cannula 2, and high temperature vapor may be emitted from the vapor nozzle 22, thereby stopping bleeding at the side window 8.
The outer needle tube 2 is fixedly connected with the piston cylinder 4, the inner needle tube motor 5 is connected with the piston 3, and the inner needle tube motor 5 is in transmission connection with the inner needle tube 1, so that the inner needle tube 1 can rotate in the accommodating cavity and can do linear reciprocating motion in the accommodating cavity along the motion direction of the piston 3.
The outer needle cannula 2 is fixedly connected to a piston cylinder 4. For ease of handling by the operator, the biopsy sampler requires a housing in which the piston cylinder 4 is arranged, as shown in fig. 4. Of course, the housing may be provided integrally with the piston cylinder 4, and the present application is not limited thereto. The inner needle tube motor 5 is fixedly connected with the piston 3, and the inner needle tube motor 5 is in transmission connection with the inner needle tube 1, so that the inner needle tube 1 can rotate in the accommodating cavity and can do linear reciprocating motion in the accommodating cavity along the motion direction of the piston 3. By using the linear reciprocating motion of the piston 3 and the rotary motion of the inner needle tube motor 5, the inner needle tube 1 can be rotated while the inner needle tube 1 is advanced, so that the sample tissue positioned in the side window 8 is cut and sampled.
The piston cylinder 4 is further provided with a collecting bin 9, the collecting bin 9 is communicated with the inner needle tube 1, and a negative pressure pipeline 10 is arranged to be connected with the collecting bin 9. The pressure in the collecting bin 9 is smaller than the external atmospheric pressure through the negative pressure pipeline 10, so that the human tissues collected in the inner needle tube 1 can be conveniently transferred into the collecting bin 9. In the actual operation process, the resected sample firstly enters the collection bin 9, and then the hemostatic operation is carried out after the tissue is taken out, so that the smooth progress of the resected and hemostatic operation is ensured.
In addition, a connecting pipe 11 is also arranged for communicating the inner needle tube 1 and the collecting bin 9, and the connecting pipe 11 is rotationally connected with the inner needle tube 1. The connecting pipe 11 can offset the rotary motion of the inner needle tube 1, so that the relative displacement of the connecting pipe 11 and the collecting bin 9 only moves linearly, and the joint of the collecting bin 9 and the connecting pipe 11 has better tightness. In order to ensure that the connecting tube 11 does not rotate, the connecting tube 11 can also be fixedly connected with the collecting bin 9.
Preferably, a flushing gap is arranged between the inner needle tube 1 and the inner wall of the accommodating cavity, and a flushing pipeline 13 connected to the flushing gap is arranged on the piston cylinder 4. The flushing liquid is connected through the flushing pipeline 13, so that the flushing gap can be filled with the flushing liquid to flush tissues, then the flushing liquid enters the inner needle tube 1, finally enters the collecting bin 9 along the inner needle tube 1, and finally the flushing liquid is discharged through the negative pressure pipeline 10.
The piston cylinder 4 is also internally provided with a pressure spring 14, one end of the pressure spring 14 is abutted against the piston cylinder 4, the other end is abutted against the piston 3, and when the piston cylinder 4 is filled with pressure fluid, the pressure spring 14 is compressed.
The arranged pressure spring 14 provides the energy for resetting the piston 3, so that the matching of the piston cylinder 4 and the piston 3 only needs to consider the movement in one direction, and compared with the piston 3 moving in two directions, the structure is simplified, and the miniaturization of the biopsy sampler is facilitated.
The inner needle tube motor 5 is a pneumatic motor, the piston cylinder 4 is an air cylinder, and the piston cylinder 4 is provided with a corresponding motor pipeline 15 and an air cylinder pipeline 16. The preferred use of gas as the power source for the inner needle motor 5 and piston 3 in the present application is particularly safe compared to electrical and hydraulic oils, as inert gas can be used as the power source.
The piston cylinder 4 comprises a cylinder body 17, a first end cap 18 and a second end cap 19, the first end cap 18 and the second end cap 19 being fixedly connected to the cylinder body 17.
The first end cover 18 is provided with an inner needle tube hole 20 for passing through the inner needle tube 1, one end of the pressure spring 14 is abutted against the first end cover 18, the outer needle tube 2 is fixed on the first end cover 18, and the flushing pipeline 13 is arranged on the first end cover 18 and connected to the inner needle tube hole 20. The second end cap 19 is provided with a connecting tube hole 21 for passing through the connecting tube 11, and the cylinder tube 16 and the motor tube 15 are provided on the second end cap 19. Dividing the piston cylinder 4 into three or more parts can reduce the difficulty of processing.
Taking breast rotary-cut biopsy as an example, the use process of the embodiment is as follows:
firstly, the cylinder pipeline 16 is ventilated, so that the pressure spring 14 is in a compressed state, and the inner needle tube 1 shields the side window 8 of the outer needle tube 2. The outer needle cannula 2 then pierces into breast tissue, the lateral window 8 of the outer needle cannula 2 fully enters into the human breast tissue, and the lateral window 8 faces the diseased tissue. Then the air cylinder pipeline 16 stops supplying air, the inner needle tube motor 5 returns, the side window 8 of the outer needle tube 2 is opened, the negative pressure pipeline 10 is ventilated, and the pathological tissue is sucked into the side window 8. Then the cylinder pipeline 16 and the motor pipeline 15 are opened simultaneously, the inner needle tube 1 rotates at a high speed under the drive of the inner needle tube motor 5, the high-pressure gas entering from the cylinder pipeline 16 pushes the inner needle tube motor 5 to move, and the inner needle tube 1 rotates at a high speed and moves along the piston cylinder 4, so that the pathological tissue sucked into the side window 8 is cut off.
The cut lesion tissue enters the collection chamber 9 along the inner needle tube 1. The negative pressure pipeline 10 is opened, the air cylinder and motor pipeline 15 is closed, the flushing pipeline 13 is filled with flushing fluid, such as normal saline, the flushing fluid enters a flushing gap along the flushing pipeline 13, contacts with tissues along the flushing gap, enters the inner needle tube 1 after flushing the tissues, finally enters the collecting bin 9 along the inner needle tube 1, and finally the flushing fluid is discharged through the negative pressure pipeline 10. After the pathological tissue is resected, high-temperature steam is sprayed to the bleeding points corresponding to the side window 8 through the steam spray head 22 to perform hemostasis operation, and finally the biopsy device is taken out from the human body.
Conventional open biopsies are increasingly being replaced by less invasive biopsy methods, some of which can be fully manipulated by a user using a single hand and with one insertion. The power structure of this embodiment overall structure is simple, and the size is littleer, more convenient user better operation. While smaller wounds reduce the incidence of inflammation and recover faster. On the basis, the method has a better hemostatic mode, and the puncture biopsy can be widely applied.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.
Any modifications or variations, which are apparent to those skilled in the art in light of the above teachings, are intended to be included within the scope of this invention without departing from its spirit.
Claims (10)
1. A biopsy sampler, characterized in that: comprises an inner needle tube (1), an outer needle tube (2), a piston (3), a piston cylinder (4), an inner needle tube motor (5) and a hemostatic device;
the inner needle tube (1) is a hollow tube arranged in a containing cavity in the outer needle tube (2), a side window (8) is arranged on the side surface of the bottom of the outer needle tube (2), and the side window (8) is communicated with the outside of the outer needle tube (2) and the containing cavity;
the hemostatic device is a high-temperature generator or a low-temperature generator, and a hemostatic end (6) of the hemostatic device is arranged inside the inner needle tube (1) so as to stop bleeding at a sampled bleeding point.
2. The biopsy sampler of claim 1, wherein: the hemostatic device is a steam spray head device, a steam component (7) of the steam spray head device is arranged at one end of the sampler shell, which is far away from the inner needle tube (1), and a steam pipeline (12) communicated with the inner needle tube (1) is arranged inside the steam component (7).
3. The biopsy sampler of claim 2, wherein: the steam nozzle (22) is arranged on the inner needle tube (1).
4. The biopsy sampler of claim 1, wherein: the outer needle tube (2) is fixedly connected with the piston cylinder (4), the inner needle tube motor (5) is connected with the piston (3), and the inner needle tube motor (5) is in transmission connection with the inner needle tube (1), so that the inner needle tube (1) can rotate in the accommodating cavity and can do linear reciprocating motion in the accommodating cavity along the motion direction of the piston (3).
5. The biopsy sampler of any one of claims 1 to 4, wherein: the piston cylinder (4) is also provided with a collecting bin (9), the collecting bin (9) is communicated with the inner needle tube (1), and a negative pressure pipeline (10) is arranged to be connected with the collecting bin (9).
6. The biopsy sampler of claim 5, wherein: the connecting tube (11) is further arranged to be communicated with the inner needle tube (1) and the collecting bin (9), and the connecting tube (11) is rotationally connected with the inner needle tube (1).
7. The biopsy sampler of any one of claims 1 to 4, wherein: a flushing gap is arranged between the inner needle tube (1) and the inner wall of the accommodating cavity, and a flushing pipeline (13) connected to the flushing gap is arranged on the piston cylinder (4).
8. The biopsy sampler of any one of claims 1 to 4, wherein: the hydraulic piston is characterized by further comprising a pressure spring (14), one end of the pressure spring (14) is abutted against the piston cylinder (4), the other end of the pressure spring is abutted against the piston (3), and when the piston cylinder (4) is filled with pressure fluid, the pressure spring (14) is compressed.
9. The biopsy sampler of claim 8, wherein: the inner needle tube motor (5) is a pneumatic motor, the piston cylinder (4) is an air cylinder, and the piston cylinder (4) is provided with a corresponding motor pipeline (15) and a corresponding cylinder pipeline (16).
10. The biopsy sampler of claim 9, wherein: the piston cylinder (4) comprises a cylinder body (17), a first end cover (18) and a second end cover (19), and the first end cover (18) and the second end cover (19) are fixedly connected to the cylinder body (17);
an inner needle tube hole (20) for passing through the inner needle tube (1) is formed in the first end cover (18), one end of the pressure spring (14) is abutted against the first end cover (18), the outer needle tube (2) is fixed on the first end cover (18), and the flushing pipeline (13) is arranged on the first end cover (18) and connected to the inner needle tube hole (20);
the second end cover (19) is provided with a connecting pipe hole (21) for passing through the connecting pipe (11), and the cylinder pipeline (16) and the motor pipeline (15) are arranged on the second end cover (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311724981.XA CN117414162A (en) | 2023-12-15 | 2023-12-15 | Biopsy sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311724981.XA CN117414162A (en) | 2023-12-15 | 2023-12-15 | Biopsy sampler |
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| Publication Number | Publication Date |
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| CN117414162A true CN117414162A (en) | 2024-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311724981.XA Pending CN117414162A (en) | 2023-12-15 | 2023-12-15 | Biopsy sampler |
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| CN (1) | CN117414162A (en) |
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| CN117883126A (en) * | 2024-03-13 | 2024-04-16 | 德州市红拳医疗器械有限公司 | Puncture sampling device |
| CN118490279A (en) * | 2024-07-17 | 2024-08-16 | 亿盛欣科技(北京)有限公司 | Minimally invasive sampler |
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